Question 970920
5 is to 38 as x is to 57

57 is half again as much as 38; 57=1(1/2) x 38

half again greater than 5 is 7 (1/2)  ;;5(1/2)=2 1/2

OR cross multiply 
5*57=x*38

(5*57)/38 =x= 7.5